Non-Amplifying ECG Signal Acquisition System Based on ∑--Δ A/D

摘要：

ECG signal is a very weak signal acquired on the surface of body. In traditional ECG signal acquisition system, to get a high-SNR ECG signal, it must use all kinds of high-performance op-amp, which leads to the acquiring circuits complex and unstable. Furthermore, almost all op-amps more or less have nonlinear distortion and other disadvantages. In this paper, a non-amplifying method to acquire a high-SNR ECG signal was proposed. It is based on 24 bit ∑--Δ A/D embedded in a high performance mixture signal ARM processor-ADuC7060. The system has high SNR up to 74.8 dB, and low nonlinear distortion, original ECG can be acquired.

关键词： Non-Amplifying ECG acquisition high-SNR ∑--Δ A/D low nonlinear distortion

作者: Hu Liang Zhang Yanfang He Lesheng Wang Weilian

作者单位: School of Information Science and Technology,Yunnan University,Kunming 650091,China

会议类型: 国际会议

会议名称: 2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)

会议地点: 成都

会议语种:英文

页码: 825-828

在线出版日期: 2011-08-16（万方平台首次上网日期，不代表论文的发表时间）